Charles bought 7/8 foot of electrical wire and 5/6 foot of copper wire for his science project. What is the least common denominator of the fraction?

8 x 6 is 48

to make it smaller, try dividing 48 by 2. if it is a multiple if the two, it is the least common denominator.

48 divided by 2 is 24

8 x 3 is 24

6 x 4 is 24

we could try dividing again, but 12 is not a multiple of 8

24 is the least common denominator